Electric hair-drying device



S. M. COFFMAN.

ELECTRIC HAIR DRYING DEVICE.

APPLlCATION FlLED A r: I, 1919.

Patented Sept. 14, 1920..

ear

aries.

Ill. COFiEIlIAIl, OF ILXIDTSAS CITY MISSOURI; ASSIGIF ELECTRIG SPECIALTYCOIVIPJLNY, A COZtPOE-ATION OF KANSAS.

nnnc'rs-rc Earn-Davina nnvr'cn.

Application filed April 1919. Serial No. 236,643.

To (ZZZ 10.7mm it may cmwern:

Be it imown that 1, Seminar, M. Corrmin, a citizen orflthe UnitedStates, residing at Kansas @ity, in the county ol aclrson and State ofMissouri; have invented certain new and useiul Improvements in ElectricHair- Drying Devices, of-which the iollowing is a specification.

My invention relates to'hair drying devices and while'it may be used toadvantage for a variety of purposes, it is intended more particularlyfor use in barber shops for directing a blast of either relatively hotor relatively cold air against the head for the purpose of drying thehair after a sham- P i i In the accompanying drawing which shows thepreferred embodiment oi' the in vent-ion, Figure 1 is a side elevationof the device.

Fig. 2 is a plan view of the device. Fig. 3 is aninverted plan viewoithe device. y

Fig. is a longitudinal sectional view of the device.

Fig. 5 is a detail inverted cross section on line V- V of Fig. 1.

in carrying out the invention l employ a chamber 1 having a removablecap 2, so that access may be readily had to the interior of saidchamber 1. The cap 2 is provided with y a perforated front wall l forthe passage of therethrough, and is held in position by a pin and abayonet-slot 6 and 8 respectively. The rear wall 10 of the chamber 1 isprovided with a number of equally spaced openings 12 for the passage of'air therethrough. The rear wall 10 is also provided with a tubularhandle 14- having a vulcanized rubber or other suitable grip 16,removably held in place by a transverse screw 18.

designates a plate fitting against the rear wall 10 and provided with asleeve 22 roclrably mounted upon the handle l l, and having athumb-piece 23 whereby it may be actuated. The plate 20 is provided withequally spaced openings 24, which register with the openings 12 in therear wall of the chamber 1 when said plate 20 is rocked to one position.fix ire cloth 26 or perforated plates are arranged within the openings2% the plate the openings 2%, as disclosed on Fig. 3. The

ro naitenns y to prevent obstructions from being drawn therein by theairblast created by a fan 28 mounted within the chamber 1.

3O designates plurality of ducts fined' to 20 and alternately arrangedwith outer ends of the ducts 30, like the openings 24:, are providedwith wire cloth 32 or perforated plates.

The ducts are provided with electric heating coils 34, preierably,connected in series, the firstcoilin the series being connected to acircuit wire 36 which isconnected to a contact 37 adapted to slidablyengage a contact .39 connected to a circuit wire 40, while the last coilin the series is connected to a circuit wire 42. The circuit wires areinsulated and the free ends of the circuit wires i0 and 1-2 areconnected to a plug (not shown) which may be insert ed in the socket ofan incandescent lamp, or other device connected to a sour'ceofelectricity. The contacts 37 and 39 are mounted on a duct 30 and thechamber 1, respectively, and the contact 37 also acts as an indicator tocoact with the inscriptions Cold and Hot on the chamber 1. A guard isfixed to the chamber 1 to prevent the operators fingers from touchingthe contacts 37 and 39 and receiving a shock when the current is on.

The fan 28 is fixedly mounted upon shaft journaled in the handle 14 andhaving a hollow slotted terminal 16, so that it may be readily connectedto a flexible shaft driven by an electric or other suitable motor (notshown). The shaft id is provided with a peripheral groove l6 to receivethe invcidence with the openings 12, so that as the air is drawn throughsaid ducts by the fan 28 it becomesheated in its passage by contact withthe coils 3&. If maximum heat is not desired the plate 20 is adjusteduntil the openings 24 and the ducts 30 both communi-- cate with theopenings 12, so that the fan 28 will draw both cold and heated air intothe chamber 1 and force it out through the perforated wall l. Asdisclosed by Figs. 1 to 3, i

inclusive, the circuit closer contact 39 is of sufiicient length toremain in engagement with the contact 37 until the plate 20 is adjustedto bring the openings 24 fully into coincidence with the openings 12,when said contact 37 passes out of engagement with the companion contactand interrupts the circuit to the coils 34.

While I have shown and described the preferred embodiment of theinvention, I re serve the right to make such changes in theconstruction, combination and arrangement ducts communicatinguwith saidchamber to a of parts as properly fall within the spirit and scopeof theclaims.v

Having thus, described my invention, what' I claim and desire to secureby Letters Patcut, is:

1. In a device ofv the character described; a chamber arranged for thepassage of,air therethrough, a handle to the device, a hot air ductadapted to communicate with said chamber to supply the same withheatedair, and means for adyusting said duct in and out of communication withthe chamber,

2. Ina device of the character described, a chamber arranged for thepassage of air therethrough, a handle to the device, ahot air ductadapted to communicate with said chamber to supply the same with heatedair, and rockable means on the handle for adjusting said/duct in and outof communication with the chamber.

3. In a devige of the character described, a chambenhaving .a perforatedfront wall for the passage of air therethrough, ,a handle to the device,and a plurality of hot air supply the same with heated air and providedwith perforated walls at their rear ends. I j

4. In a device of the character, described, a chamber arranged for'thepassage of air. therethrough, a handle to the device, a hotair ductadapted to communicate, with said is opened to cut 0 chamber to supplythe same with heated air, electrical heating means in said duct to heatthe air therein, and a circuit breaker which 5. In a'device ofthe-characterdescribed,

the current to said elec- 7 trical heating means when the duct is adachamber arranged for the passage of air therethrough, a handle tothedevice, a hot air duct adapted to communicate with said chamber tosupply the same with heated air, electrical heating means in said ductto heat the air therein, a contact on the chamber wall, and a contact onthe duct which is thrown into engagement with the first contact whensaid duct is adjusted into communication with the chamber.

6. In a device of the character described,

'a chamber arranged for the passage of air therethrough, a handle tothedevice, hot air ducts spaced equidistant apart and communicatingwitli'said chamber to supply the same with heated air, a fan within thechamber to expel the heated air therefrom, and a shaftjournaled in thehandle carrying said fan.

*7. In a device of the character described,

a chamber arranged for the passage of air therethrough, av handle to thedevice, hot air ducts spaced equidistant apart and communieating withsaid chamber to supply the same with heated air, a fan within thechamber to expel'theheated air therefrom, a shaft journaled in thehandle carrying said fan, and

a brake extendingloosely through the han:

dle and'adapted to frictionally engage said shaft; I

8. In a device of the character described,

a chamber having a perforated front wall and equally-spaced openings inits rear wall for the passage of air therethrough, a late rockablymounted-atthe rear of said 0 amher and having openings whichregisterwith the first-mentioned openings when said plate is rocked toone position, ducts fixed to said plate and arranged to communicate withthe first-mentioned openings when" the plate is rocked to anotherposition, and means for heating the air ;in said ducts. 1

9. Ina device of the character described, a chamber having a perforatedfront wall and equally-spaced openings in its rear wall for the passageof air therethrough, a plate rockably mounted at the rear of saidchamher and having openings which register with the last-mentionedopenings when said plate is rocked to one position, ducts fixed to saidplate and arranged toQcommunicate with the first-mentioned openings whentheplate is rocked to another position, means for heating the air insaid ducts, and a handle to the device.

10. In a device of-the character described,

a chamber having a perforated front wall and equally-spaced openings initsrear' wall for the passage of air therethrough, a plate rockablymounted at the rear of said chamher and having openings which registerwith the first-mentioned openings When said plate is rocked to oneposition, ducts fixed to said plate and arranged to communicate with thefirst-mentioned openings when the plate is rocked to another position,means for heat-' ing the air in said ducts, a handle to said device, anda fan for creating a current of 10 air through the ducts and thechamber.

In testimony whereof I afiix my signature, in the presence of twoWitnesses.

SAMUEL M. COFFMAN.

